<!DOCTYPE html>
<html lang="en">
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Calculator</title>
  <link rel="stylesheet" href="main.css">
</head>
<body>

<div class="calculator">
  <div class="calculator__display">
    <div>100</div>
  </div>
  <div class="calculator__button_panel">
    <div class="row">
      <button class="button">AC</button>
      <button class="button">+/-</button>
      <button class="button">%</button>
      <button class="button button--orange">÷</button>
    </div>
    <div class="row">
      <button class="button">7</button>
      <button class="button">8</button>
      <button class="button">9</button>
      <button class="button button--orange">x</button>
    </div>
    <div class="row">
      <button class="button">4</button>
      <button class="button">5</button>
      <button class="button">6</button>
      <button class="button button--orange">-</button>
    </div>
    <div class="row">
      <button class="button">1</button>
      <button class="button">2</button>
      <button class="button">3</button>
      <button class="button button--orange">+</button>
    </div>
    <div class="row">
      <button class="button button--wide">0</button>
      <button class="button">.</button>
      <button class="button button--orange">=</button>
    </div>
  </div>
</div>
  
</body>
</html>